The joint ventures between MHI and Cat Inc. are not just in MHE. Cat Japan is also a joint venture with MHI, previously 50/50, and as of 2008 68/32 for Cat.
Also MHI supply a number of engines to Cat which have replaced their own Perkins engines in some products.
Cat are actually continue to expand their joint ventures and alliances, continuing with their JLG Caterpillar alliance for Telehandlers, various work tool alliances and now mini-excavators amongst many others.
Nothing is ever sure fire and whilst profit is shared according to your holding in a company but so is loss. Cat have had a good return in 16 years of MHE business with MHI with minimal input and risk, and compared to Cat's overall global losses the MHE business is small fry.
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